Enabled style and CERT-C addon for CPPCHECK (#869)

* Enabled style and CERT-C addon for CPPCHECK with some suppressions and fixed the defects found..

src/bacnet/datalink/bsc/bvlc-sc.c

@@ -738,7 +738,7 @@ size_t bvlc_sc_encode_result(
     uint8_t *error_header_marker,
     uint16_t *error_class,
     uint16_t *error_code,
-    uint8_t *utf8_details_string)
+    const uint8_t *utf8_details_string)
 {
     size_t offs;
 
@@ -1803,7 +1803,7 @@ static bool bvlc_sc_decode_hdr(
         offs += hdr_opt_len;
     }
 
-    if (message_len - offs <= 0) {
+    if (offs >= message_len) {
         /* no payload */
         return true;
     }